Google Earth has just updated their database with new imagery enhancing the resolution for over 100 cities around the world. You can read their announcement at the Google Earth Forums. Like other updates Google has made in the past, there are probably other places updated not in their list. Yet another reason to go exploring Google Earth!
About Frank Taylor
Frank Taylor started the Google Earth Blog in July, 2005 shortly after Google Earth was first released. He has worked with 3D computer graphics and VR for many years and was very impressed with this exciting product. Frank completed a 5.5 year circumnavigation of the earth by sailboat in June 2015 which you can read about at Tahina Expedition, and is a licensed pilot, backpacker, diver, and photographer.